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山东省寿光县道口乡北单村的太阳房小学为山东省规模最大、全部为太阳能采暖教室的农村小学。山东省寿光县道口乡位于寿光县城以北,该地区太阳能资源比较丰富,全年日照时数在2800小时,年日照率在62%,采暖期12月、1月、2月,每月日照时数在200小时左右,日照率在63%,日照时数和年日照率均在全省之首。冬至正午太阳高度角
Sunfang Primary School in Beidan Village, Daokou Township, Shouguang County, Shandong Province is the rural primary school in Shandong Province, which is the largest and all solar energy heating classrooms. The Daokou Township, Shouguang County, Shandong Province is located north of Shouguang County. The region has abundant solar energy resources. The annual sunshine hours are 2800 hours, the annual sunshine rate is 62%, and the heating period is December, January, February, and every month. The number is about 200 hours, the sunshine rate is 63%, and the sunshine hours and the annual sunshine rate are the highest in the province. Winter solstice at midday sun elevation angle